Jce-making machine



(No Model.) 2 Sheets-Sheet 1.

0. KLINE. ICE MAKING MACHINE. No. 274,500. Patented Mar.27,1883.

WITIVESSES: M A

INVENTOR,

A T TORNE Y M. PETKRS. MW. Wupnm ac,

(H0 Modem 7 2 Sheets-Sheet 2. J. 0. KLINE.

IQE MAKING MACHINE. No. 274,500. Patented M31227, 1883.

Wzrjv 5555; INVENTOR,

' ATTORNEY N. PEFERS. Photo-Ma abar, Wllhingon. D. C.

UNITED STATES PATENT FFIGE.

JOSEPH O. KLINE, OF PHILADELPHIA, PENNSYLVANIA.

ICE-MAKING MACHINE.

SPECIFICATION forming part of Letters Patent No. 274,500, dated March27, 1883.

Applicatiiin filed December 15, 1882. (No model.)

To all whom it may concern;

Be it known that I, Josnrn O. KLINE, a citizen of the United States,residing at 'Phil adelphia, in the county of Philadelphia and State ofPennsylvania, have invented certain new and useful Improvements inIce-Makin g Machines, of which the followingis a specification,reference being had therein to the accompanying drawings, wherein-Figure 1 is a sectional view of a theoretical arrangement of the partsof an ice or refrigerating machine for illustrating my improvements.Fig. 2 is a detail plan. Fig. 3 is a detail section of the stuifing-boxfor the pump piston-rod. Fig. 4 is a plan of the packing therefor, andFig. 5 is a sectional elevation of a modification.

My invention has relation to that class of refrigerating or ice-makingmachines wherein the compression and liquefaction of the vapors of avolatile liquid and the subsequent evaporation of such liquid areutilized for producing the refrigerant results; and it has for itsobject to prevent the forcing of the lubricant from the stuffing-box ofthe piston-rod into the compressing pump-cylinder; to avoid theadmission of air to said cylinder or the leakage of vapor therefrom; toobviate the freezing of the pump or undue back-pressure by the returncold vapor from the refrigerating-tank; to more quickly and economicallyeffect the condensation of the compressed vapor, and to provide for thecompression of the vapor with less expenditure of power. My improvementsaccordinglyconsist- First, of the provision of a pump, the piston-rods'tuifing-bcx of which is connected to a reservoir containing glycerineor other suitable lubricant, having a pipe-connection with the interiorof the pump-cylinder, whereby the oil in the stuffing-box is alwaysdirectly subject to the pressure in the pump-cylinder, thereby providinga packing for the stuffing box which efiectually prevents the ingress ofair to said cylinder or the leakage of vapor therefrom, and the forcingof such lubricant from the stuffing-box into the cylinder is avoided.

Second, of the combination, with the condenser, of a reservoir having acoil or a series of coils connecting with the refrigerating-tank and aflow of water or other suitable liquid passing through said reservoir,and from thence through the condenser, so that as the cold vapor fromthe refrigerating-tank passes through the coils in the reservoir itcools the water therein, which, when it enters the condenser, isutilized to efl'ect a condensation or liquefaction of the compressedvapor. The said cold vapor is thereby rendered less cold, so that whenit returns to the pump it does not freeze the latter or produce unduebackpressure. Consequently the pump is operated to insure better resultswith a decrease of power.

Third, of the novel combination, arrangemen t, and construction ofparts, as hereinafter specifically described and claimed.

Referring to the accompanying drawings, A represents the pump; B,tl1econdenser, andG the refrigerating-tank, which may be constructed andarranged in the usual or other suitable manner. The coils in thecondenser and tank, as well as those to be hereinafter described, mayconsist of a single coil or a series of coils connected to manifolds D,as more plainly shown in Fig.

E represents the stuffing-box for the pistonrod a, which is composed ofthe glands F F, screwed togethcratj'and f to a tubular flange, a,projecting from the cylinder-head A: A rubber, lead, or other suitablering, f, is in-' terposed'between the ends of the gland F and the flangea, for preventing said ends being screwed up to each other, therebyproviding for an annular space, f which forms a communication betweenthe interior of the stuifingbox and a passage way or channel, ad, in theSurrounding the piston-rod a at each end of the stuffing-box are tworings, It It 5 and k k are other rings connected by rods k which arelocated centrally within the stuffing-box, on each side of the space j.Between the rings is k and k a flexible or other packing, is, isinterposed, as shown. If desired, the rings k It may consist of a sleevewith openings therein, as plainly illustrated in Fig. 4.

To the external outlet of channel, a is secured a pipe, h, whichconnects with a vessel or reservoir, H, containing glycerine or otherlubricant for the piston-rod. From reservoir H proceeds a pipe, h,provided with valve k leading to the interior of the pump-cylindering-box, which effectually prevents the admission of air to the cylinderand the emission of the vapor therefrom. As the pressure in the cylindervaries the pressure upon the lubricant varies correspondingly.Consequently, said lubricant being always between two equal pressures,it is not forced into the pump-cylinder, as has heretofore occurred whenit was subjected to the pressure in the condenser, as the pressure inthe latter is greater than that in the pump when the piston begins itsstroke.

The provision of the ring it permits of the withdrawal of the packing kwhen Worn out without resorting to the manual operation of picking orpulling it out of the stnffiug-box. For instance, when said packingisused up and it is desired to replace it with fresh packing, the gland Fis unscrewed and the pistonrod aslid in the direction of arrow at, Fig.3. The frictional contact between said rod and said rings andpacking-causes the last-named parts to move with said rod, and when theyemerge from the box the packing is knocked off the piston-rod, freshpacking supplied, and the rod is reversely moved to reinsert the ringsand packing in the stuffing-box.

The compressed vapor from the pump passes through pipe I to condenser E,thence to the refrigerating-tankG. From the latter the cold vapor isconducted through pipe 0, having cock 0, to a coil, L, in reservoir M,cools the water flowingthereinto, andis raised in temperature,

so that when it arrives at or returns to the pump it is not cold enoughto freeze the same or cause undue back-pressure. The cooled water inreservoir M is forced or conducted to the condenser B, and is utilizedfor causing a liquefaction of the compressed vapor in its coils. Hencesuch vapor is more quickly and economically condensed than hasheretofore been the case. The waterin reservoirMmay be forced to thecondenser by a pump, N, or said vessels may be located in respect toeach other as shown in Fig. 5, so that the water from reservoir M willnaturally flow into the condenser, m representing the inlet of thewater-pipe, m the connection, and m the outlet-pipe for said parts.Itwill thus be seen that a stream of running water is passing throughthe reservoir M and condenser B.

The cocks c are provided for regulating the flow of vapor passingthrough the coils in the refrigerating-tank,andthey and portions of thepipes c are located outside of the tank, in order that the pipes 0 maybe inspected to ascertain if the vaporis passing through the wholeseries of pipes. If the flow of vapor is through all the pipes, theywill be what is technically called white -t'. 6., covered with frostproduced by the freezing thereon of the moisture in the atmosphere bntifone or more pipes have no frost thereon, or are 4 black, then itisapparentthat thevapor is not passing therethrough, whereupon theattendant opens its respective valve 0 to a greater extent and the vaporsoon flows through said pipes, when the valves are again adjusted totheir original position. The vapor from the tank 0 being warmed beforepassing to the pump, the latter can be worked to better advantage withless power than heretofore has been the case.

What I claim is- 1. The combination, in a compressing-pump, of acylinder, a piston-rod, a stuffing-box therefor, a reservoir for thelubricant, and a commu'nication from said cylinder through saidreservoir to the stuffing-box, substantially as shown and described.

2. The combination,in a com pressing-pum p, of a cylinder, piston-rod,stuffing-box, reservoir for a lubricant, and means for holding thelubricant in the stutfing-box under the pressure generated in saidcylinder, substantially as shown and described.

3. In combination with pump A, the head A, having flange a and channelM, the glands F F, ring f pipes h h, and reservoir H, snbstantially asshown and described.

4. The combination, with packing 7c, of the rings k k, located at eachend of the stuffingbox E, and piston-rod a, substantially as shown anddescribed.

5. In an ice-making machine, the combination of a pump having astuffing-box the lubricant of which is under thedirect pressuregenerated in said pump, a condenser, a refrigerating-tank, a reservoirof water, a coil therein, connected at one end to the pipe from therefrigerating-tank and at the other to a pipe leading to the pump, andmeans for conveying or forcing said water from said reservoir to thecondenser, substantially as shown and described.

6. The combination of tank 0, reservoir M, coil L, condenser B,vapor-pipe I, and waterpipe connections m, m, and m, substantially asshown and described.

7. In compressing-pumps, the method of preventing leakage of lubricantfrom the stuffing-box to the pump-cylinder, which consists of subjectingsaid lubricant to the pressure of the pump, so as to cause it to beunder the influence of two opposing equal pressures, substantially asset forth.

In testimony whereof I afiix'my signature in presence of two witnesses.

. JOSEPH O. KLINE. Witnesses:

S. J. VAN STAVOREN, CHAS. F. VAN Home

